一种新的表面张力测定方法——真球气泡法

doi:10.12066/j.issn.1007-2861.2024

上海大学学报(自然科学版) ›› 2020, Vol. 26 ›› Issue (2): 244-254.doi: 10.12066/j.issn.1007-2861.2024

一种新的表面张力测定方法——真球气泡法

郭杰¹, 余仲达¹(), 郑少波¹, RYO Moriyasu², HIROMICHI Takebe³, KUSUHIRO Mukai⁴

^1. 上海大学材料科学与工程学院省部共建高品质特殊钢冶金与制备国家重点实验室, 上海 200444
^2. Sanwa Hydrotech Corporation, Fukuchiyama 620-0853, Japan
^3. Graduate School of Science and Engineering, National University Corporation Ehime University, Matsuyama 790-0826, Japan
^4. Kyushu Institute of Technology, Kyushu 804-8550, Japan

收稿日期:2018-03-29 出版日期:2020-04-30 发布日期:2020-04-29
通讯作者: 余仲达 E-mail:yuzhongda66@163.com

A new method for measuring surface tension—real sphere bubble method

GUO Jie¹, YU Zhongda¹(), ZHENG Shaobo¹, RYO Moriyasu², HIROMICHI Takebe³, KUSUHIRO Mukai⁴

^1. State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, Shanghai 200444
^2. Sanwa Hydrotech Corporation, Fukuchiyama 620-0853, Japan
^3. Graduate School of Science and Engineering, National University Corporation Ehime University, Matsuyama 790-0826, Japan
^4. Kyushu Institute of Technology, Kyushu 804-8550, Japan

Received:2018-03-29 Online:2020-04-30 Published:2020-04-29
Contact: YU Zhongda E-mail:yuzhongda66@163.com

摘要/Abstract

摘要：

设计了一个新的表面张力测定装置,通过实时测定液膜气泡的半径及其内外压差来获得被测液体的表面张力.该测定液体表面张力的方法简称为真球气泡法(real sphere bubblemethod, RSBM). 对十二烷基硫酸钠(sodium dodecyl sulfate,SDS)溶液的表面张力进行了测定, 结果与文献值吻合,且测定装置的绝对精度为98.2%.通过检测到的液膜气泡突然长大所需要的最大压差值Δ P_m及其表面积随时间的变化过程, 定量分析了ΔP_m与溶液起泡难易程度及气泡大小的关系.

关键词: 真球气泡法, 表面张力, 十二烷基硫酸钠溶液, 气泡长大机理

Abstract:

A new device for measuring surface tension was designed, and the surface tension of liquid was calculated through real-time measurement of the radius and the differential pressure between inside and outside of the liquid bubble. This new method of measuring liquid surface tension is known as real sphere bubble method (RSBM). In this paper, the surface tension of sodium dodecyl sulfate (SDS) solutions is measured. The results are consistent with the literature. The absolute accuracy of this apparatus is 98.2%. In addition, ΔP_m is the maximum differential pressure required for rapid growth of bubbles formed by SDS solutions. The difficult level of foaming a liquid bubble and the size of a bubble is quantitatively analyzed by detecting ΔP_m for sudden bubble growth and the change of surface area over time.

Key words: real sphere bubble method (RSBM), surface tension, sodium dodecyl sulfate (SDS) solution, the mechanism of the bubble growth

中图分类号:

TH89

郭杰, 余仲达, 郑少波, RYO Moriyasu, HIROMICHI Takebe, KUSUHIRO Mukai. 一种新的表面张力测定方法——真球气泡法[J]. 上海大学学报(自然科学版), 2020, 26(2): 244-254.

GUO Jie, YU Zhongda, ZHENG Shaobo, RYO Moriyasu, HIROMICHI Takebe, KUSUHIRO Mukai. A new method for measuring surface tension—real sphere bubble method[J]. Journal of Shanghai University（Natural Science Edition）, 2020, 26(2): 244-254.

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一种新的表面张力测定方法——真球气泡法

A new method for measuring surface tension—real sphere bubble method

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